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In polymer chemistry, polymerization is a process of reacting monomer molecules together in a Chemical reaction to form three-dimensional networks or polymer chains

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Polypropylene

poly(l-methylethylene)

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n H₂N-R'-NH₂ -- —|—Ć-R—C—N-R'-N—t

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Laboratory synthetic methods are generally divided into two categories, condensation polymerization (step-growth polymerization) and addition polymerization

polyaddition or Chain growth polymerization, is a polymerisation technique where unsaturated monomer molecules add on to a growing polymer Chain one at a time

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polystyrene

A molecule of water is given off and    _c

the nylon is formed

“’0 styrene